The categories pc/mobile/console should be, in stead, the input you are playing with: keyboard and mouse/touchscreen/controller. I know that there are composed options like playing with controller and touchscreen. For that I propose 2 things: The first one is to ban the runs that are played with more than one input. And the second one is to establish which input is the priority, for example if u submit a run with controller and touchscreen the priority would be controller so the run would be submitted on controller category. I think that the priorities should be: 1st keyboard and mouse. 2nd controller. 3rd touchscreen.